import type { Ref } from 'vue';
import type { FormProps, FormSchema } from '../types/form';

import { computed, unref } from 'vue';
import { isNumber } from '/@/utils/is';

export function useItemLabelWidth(schemaItemRef: Ref<FormSchema>, propsRef: Ref<FormProps>) {
    return computed(() => {
        const schemaItem = unref(schemaItemRef);
        const { labelCol = {}, wrapperCol = {} } = schemaItem.itemProps || {};
        const { labelWidth, disabledLabelWidth } = schemaItem;

        const {
            labelWidth: globalLabelWidth,
            labelCol: globalLabelCol,
            wrapperCol: globWrapperCol,
        } = unref(propsRef);

        // If labelWidth is set globally, all items setting
        if ((!globalLabelWidth && !labelWidth && !globalLabelCol) || disabledLabelWidth) {
            labelCol.style = {
                textAlign: 'left',
            };
            return { labelCol, wrapperCol };
        }
        let width = labelWidth || globalLabelWidth;
        const col = { ...globalLabelCol, ...labelCol };
        const wrapCol = { ...globWrapperCol, ...wrapperCol };

        if (width) {
            width = isNumber(width) ? `${width}px` : width;
        }

        return {
            labelCol: { style: { width }, ...col },
            wrapperCol: { style: { width: `calc(100% - ${width})` }, ...wrapCol },
        };
    });
}
